Question

Find the value of 999² using special products.​

Answer 1

Step-by-step explanation:

• 999²=999×999
• 999²=999×999=1000×999–1×999
• 999²=999×999=1000×999–1×999=(999×1,000)–999
• 999²=999×999=1000×999–1×999=(999×1,000)–999=(1,000×1,000–1×1,000)-1000+1
• 999²=999×999=1000×999–1×999=(999×1,000)–999=(1,000×1,000–1×1,000)-1000+1=1,000,000–1,000-1,000+1
• 999²=999×999=1000×999–1×999=(999×1,000)–999=(1,000×1,000–1×1,000)-1000+1=1,000,000–1,000-1,000+1=1,000 thousands-2 thousand+1
• 999²=999×999=1000×999–1×999=(999×1,000)–999=(1,000×1,000–1×1,000)-1000+1=1,000,000–1,000-1,000+1=1,000 thousands-2 thousand+1=998 thousands+1
• 999²=999×999=1000×999–1×999=(999×1,000)–999=(1,000×1,000–1×1,000)-1000+1=1,000,000–1,000-1,000+1=1,000 thousands-2 thousand+1=998 thousands+1=998,000+1
• 999²=999×999=1000×999–1×999=(999×1,000)–999=(1,000×1,000–1×1,000)-1000+1=1,000,000–1,000-1,000+1=1,000 thousands-2 thousand+1=998 thousands+1=998,000+1=998,001
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Answer 2

Answer:

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